drm_gem_vra..._dumb_create(9)

💅 drm_gem_vram_driver_dumb_create(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes, the kernel, yes, the big one, and yes, this page is literally about one (1) function that makes dumb buffers happen. it's giving "small but crucial" energy and honestly? iconic. 🎀

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✨ NAME ✨

drm_gem_vram_driver_dumb_create — the function that implements &struct drm_driver.dumb_create. that's it, that's the whole job description, and it does it flawlessly, no cap. 💅

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🦋 SYNOPSIS 🦋

int drm_gem_vram_driver_dumb_create (struct drm_file *file , struct
drm_device *dev , struct drm_mode_create_dumb *args );

literally just look at it. three params, one int return, main character energy fr fr. 🔥

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🌸 ARGUMENTS 🌸

• file — the DRM file. yes bestie, the file. it's right there. 🫶
• dev — the DRM device. the whole device. the moment. 👑
• args — the arguments as provided to struct drm_driver.dumb_create. very on-the-nose, we love a consistent naming convention. ⭐

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💖 DESCRIPTION 💖

so here's the tea ☕ — this function requires the driver to use drm_device.vram_mm for its instance of VRAM MM. not optional, not "if you feel like it", it's a requirement. the way that this is non-negotiable... periodt. 💀

no cap, if your driver isn't set up with drm_device.vram_mm for its VRAM MM instance, this is not the function for you. read the room. 🙈

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🌈 RETURN 🌈

• 0 on success 🥳
• or a negative error code otherwise 😭

that's the whole vibe check — zero means slay, negative means something went sideways. simple as. ✨

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🧚 SEE ALSO 🧚

the whole friend group, gathered for you, in no particular order but actually in this exact order:

• Kernel file ./drivers/gpu/drm/drm_gem_vram_helper.c overview(9)
• drm_gem_vram_create(9)
• drm_gem_vram_put(9)
• drm_gem_vram_offset(9)
• drm_gem_vram_vmap(9)
• drm_gem_vram_vunmap(9)
• drm_gem_vram_fill_create_dumb(9)
• drm_gem_vram_object_free(9)
• drm_gem_vram_plane_helper_prepare_fb(9)
• drm_gem_vram_plane_helper_cleanup_fb(9)
• drm_gem_vram_object_vmap(9)
• drm_gem_vram_object_vunmap(9)
• drm_vram_mm_debugfs_init(9)
• drmm_vram_helper_init(9)
• drm_vram_helper_mode_valid(9)

go read those too, bestie, iykyk. 📚💜

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🎀 the cute lil sign-off 🎀

this page lives in ./drivers/gpu/drm (that's the source/version bit, okurrr), it's dated October 2026, and it goes by drm_gem_vra..._dumb_create(9) — yes the header abbreviates it, no we don't know why, yes we're choosing peace about it. bye bestie, go create some dumb buffers 💖✨🦋🌸🫶